Phototransformation of some 2‐alkyloxybenzothiazole derivatives

Autor:	Richard Hercek, Róbert Kubinec, Anton Gáplovský
Rok vydání:	1999
Předmět:	Solvent Polarity (international relations) chemistry Health Toxicology and Mutagenesis Photodissociation Environmental Chemistry chemistry.chemical_element Cleavage (embryo) Photochemistry Pollution Oxygen
Zdroj:	Toxicological & Environmental Chemistry. 68:457-469
ISSN:	1029-0486 0277-2248
DOI:	10.1080/02772249909358677
Popis:	We have performed the photolysis of 2‐methyloxy‐, 2‐ethyloxy‐, 2‐propyloxy‐, 2‐isopropyloxy‐, 2‐(l‐methylbutyl)oxy‐, 2‐cyclohexyloxy‐ and 2‐propargyloxybenzothiazole derivatives. We have studied the influence of polarity of the solvent and presence or absence of oxygen on the course of their photochemical transformations. In general it can be concluded that the cleavage of the substituent‐oxygen bonds occurs preferentially, whereby the main product was identified in most cases to be 2‐benzothiazolinone. The rate of photolysis and the composition of the reaction mixture was dependent upon the presence or absence of oxygen. Photoreactivity of above benzo‐thiazole derivatives was also strongly dependent on the structure of the substituents in the position 2.
Databáze:	OpenAIRE
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